“This video may distress some people but I’m sharing to show just how scary and dangerous whooping cough is to babies who are too young to be vaccinated,” Sandra wrote.

“This is my 5 week old baby during an episode where she chokes and stops breathing.

“Babies rely on herd immunity to keep them safe and unfortunately we cannot achieve that without high vaccination rates.”

Sandra’s video, which has been viewed over 237,000 times, hopes to get people to take note of the dangers of not vaccinating.

“Whooping cough is not always a loud obvious cough,” she wrote.

“The scary symptom for babies is when they don’t cough but silently choke and turn blue/purple from lack of oxygen.”

The baby required an oxygen mask.Source:Facebook

Sandra’ believes her daughter Heidi, who is surrounded by family and medical staff in the video while her husband holds an oxygen mask to his daughter’s face, would have died if they didn’t get her to hospital.

Sandra decided to film her daughter in hospital to show other mothers that a cough isn’t the biggest symptom in babies.

“It’s the silent episodes which mean we are watching her 24/7 and very tired!” she commented on her video.

“Lucky my husband is amazing and we have been taking shifts.”

Heidi with her father, who is helping her to breathe with an oxygen mask.Source:Facebook

When contacted by news.com.au, Sandra explained that her son had contracted whooping cough and was tested positive when Heidi was just 10 days old.

“There were many other kids in his daycare class who were positive so we were notified and took him to get tested,” she said.

“We had to push the doctor to test him as he only had a slight cough at night. We were all put on antibiotics including Heidi as a preventative. We tried to keep the kids separate as much as possible but it is very hard to tell a toddler adjusting to a new sibling that he can’t go near her.

“When Heidi was three weeks we noticed a very occasional cough which got worse after feeds, I put it down to silent reflux and we got medication for it.

“By last Thursday (Heidi was 4.5 weeks) I decided to take her to the doctor to be tested. Call it mother’s instinct. We had to pick her up and pat her back when she coughed because it started to sound like she was choking.

“The doctor was very unhelpful and again we had to push for her to be tested.

“The following day Heidi coughed and then went blue and stopped breathing. My husband started CPR immediately (he is a firefighter).”

Heidi was hospitalised soon after.

Sandra’s video has been met with well wishes and posts of support from thousands of social media users.